@misc{ludwik+silberstein+and+the+operator+calculus,
    author = {Flin, Piotr i Bajan, Katarzyna i Godłowski, Włodzimierz},
    title = {Ludwik Silberstein and the operator calculus},
    journal = {Technical Transactions},
    address = {Kraków},
    publisher = {<a href=\"http://www.wydawnictwo.pk.edu.pl/\" target=\"_blank\">Wydawnictwo PK</a>},
    date = {2015},
    number = {Y. 112, iss. 2-NP}
}